<?php

/**

 * html_output.php

 * HTML-generating functions used throughout the core

 *

 * @package functions

 * @copyright Copyright 2003-2008 Zen Cart Development Team

 * @copyright Portions Copyright 2003 osCommerce

 * @license http://www.zen-cart.com/license/2_0.txt GNU Public License V2.0

 * @version $Id: html_output.php 6726b-modified 2008-01-09 drbyte $

 */



// zen-cart.cn

// Ultimate SEO URLs v2.105

// The HTML href link wrapper function

  function zen_href_link($page = '', $parameters = '', $connection = 'NONSSL', $add_session_id = false, $search_engine_safe = true, $static = false, $use_dir_ws_catalog = true) {

		

		/* QUICK AND DIRTY WAY TO DISABLE REDIRECTS ON PAGES WHEN SEO_URLS_ONLY_IN is enabled IMAGINADW.COM */

		$sefu = explode(",", ereg_replace( ' +', '', SEO_URLS_ONLY_IN ));

		if((SEO_URLS_ONLY_IN!="") && !in_array($page,$sefu)) {

			return original_zen_href_link($page, $parameters, $connection, $add_session_id, $search_engine_safe, $static, $use_dir_ws_catalog);

		}

		

		if (!isset($GLOBALS['seo_urls']) && !is_object($GLOBALS['seo_urls'])) {

			include_once(DIR_WS_CLASSES . 'seo.url.php');



			$GLOBALS['seo_urls'] = &new SEO_URL($_SESSION['languages_id']);

		}



		return $GLOBALS['seo_urls']->href_link($page, $parameters, $connection, $add_session_id, $static, $use_dir_ws_catalog);

  }

 

/*

 * The HTML href link wrapper function

 */

  function original_zen_href_link($page = '', $parameters = '', $connection = 'NONSSL', $add_session_id = true, $search_engine_safe = true, $static = false, $use_dir_ws_catalog = true) {

    global $request_type, $session_started, $http_domain, $https_domain;



    if (!zen_not_null($page)) {

      die('</td></tr></table></td></tr></table><br /><br /><strong class="note">Error!<br /><br />Unable to determine the page link!</strong><br /><br /><!--' . $page . '<br />' . $parameters . ' -->');

    }



    if ($connection == 'NONSSL') {

      $link = HTTP_SERVER;

    } elseif ($connection == 'SSL') {

      if (ENABLE_SSL == 'true') {

        $link = HTTPS_SERVER ;

      } else {

        $link = HTTP_SERVER;

      }

    } else {

      die('</td></tr></table></td></tr></table><br /><br /><strong class="note">Error!<br /><br />Unable to determine connection method on a link!<br /><br />Known methods: NONSSL SSL</strong><br /><br />');

    }



    if ($use_dir_ws_catalog) {

      if ($connection == 'SSL' && ENABLE_SSL == 'true') {

        $link .= DIR_WS_HTTPS_CATALOG;

      } else {

        $link .= DIR_WS_CATALOG;

      }

    }



    if (!$static) {

      if (zen_not_null($parameters)) {

        $link .= 'index.php?main_page='. $page . "&" . zen_output_string($parameters);

      } else {

        $link .= 'index.php?main_page=' . $page;

      }

    } else {

      if (zen_not_null($parameters)) {

        $link .= $page . "?" . zen_output_string($parameters);

      } else {

        $link .= $page;

      }

    }



    $separator = '&';



    while ( (substr($link, -1) == '&') || (substr($link, -1) == '?') ) $link = substr($link, 0, -1);

// Add the session ID when moving from different HTTP and HTTPS servers, or when SID is defined

    if ( ($add_session_id == true) && ($session_started == true) && (SESSION_FORCE_COOKIE_USE == 'False') ) {

      if (defined('SID') && zen_not_null(SID)) {

        $sid = SID;

//      } elseif ( ( ($request_type == 'NONSSL') && ($connection == 'SSL') && (ENABLE_SSL_ADMIN == 'true') ) || ( ($request_type == 'SSL') && ($connection == 'NONSSL') ) ) {

      } elseif ( ( ($request_type == 'NONSSL') && ($connection == 'SSL') && (ENABLE_SSL == 'true') ) || ( ($request_type == 'SSL') && ($connection == 'NONSSL') ) ) {

        if ($http_domain != $https_domain) {

          $sid = zen_session_name() . '=' . zen_session_id();

        }

      }

    }



// clean up the link before processing

    while (strstr($link, '&&')) $link = str_replace('&&', '&', $link);

    while (strstr($link, '&amp;&amp;')) $link = str_replace('&amp;&amp;', '&amp;', $link);



    if ( (SEARCH_ENGINE_FRIENDLY_URLS == 'true') && ($search_engine_safe == true) ) {

      while (strstr($link, '&&')) $link = str_replace('&&', '&', $link);



      $link = str_replace('&amp;', '/', $link);

      $link = str_replace('?', '/', $link);

      $link = str_replace('&', '/', $link);

      $link = str_replace('=', '/', $link);



      $separator = '?';

    }



//    if (isset($sid)) {

//      $link .= $separator . zen_output_string($sid);

 //   }



// clean up the link after processing

    while (strstr($link, '&amp;&amp;')) $link = str_replace('&amp;&amp;', '&amp;', $link);



    $link = ereg_replace('&', '&amp;', $link);

    return $link;

  }





/*

 * The HTML image wrapper function for non-proportional images

 * used when "proportional images" is turned off or if calling from a template directory

 */

  function zen_image_OLD($src, $alt = '', $width = '', $height = '', $parameters = '') {

    global $template_dir;



//auto replace with defined missing image

    if ($src == DIR_WS_IMAGES and PRODUCTS_IMAGE_NO_IMAGE_STATUS == '1') {

      $src = DIR_WS_IMAGES . PRODUCTS_IMAGE_NO_IMAGE;

    }



    if ( (empty($src) || ($src == DIR_WS_IMAGES)) && (IMAGE_REQUIRED == 'false') ) {

      return false;

    }



    // if not in current template switch to template_default

    if (!file_exists($src)) {

      $src = str_replace(DIR_WS_TEMPLATES . $template_dir, DIR_WS_TEMPLATES . 'template_default', $src);

    }



// alt is added to the img tag even if it is null to prevent browsers from outputting

// the image filename as default

    $image = '<img src="' . zen_output_string($src) . '" alt="' . zen_output_string($alt) . '"';



    if (zen_not_null($alt)) {

      $image .= ' title=" ' . zen_output_string($alt) . ' "';

    }



    if ( (CONFIG_CALCULATE_IMAGE_SIZE == 'true') && (empty($width) || empty($height)) ) {

      if ($image_size = @getimagesize($src)) {

        if (empty($width) && zen_not_null($height)) {

          $ratio = $height / $image_size[1];

          $width = $image_size[0] * $ratio;

        } elseif (zen_not_null($width) && empty($height)) {

          $ratio = $width / $image_size[0];

          $height = $image_size[1] * $ratio;

        } elseif (empty($width) && empty($height)) {

          $width = $image_size[0];

          $height = $image_size[1];

        }

      } elseif (IMAGE_REQUIRED == 'false') {

        return false;

      }

    }



    if (zen_not_null($width) && zen_not_null($height)) {

      $image .= ' width="' . zen_output_string($width) . '" height="' . zen_output_string($height) . '"';

    }



    if (zen_not_null($parameters)) $image .= ' ' . $parameters;



    $image .= ' />';



    return $image;

  }





/*

 * The HTML image wrapper function

 */

  function zen_image($src, $alt = '', $width = '', $height = '', $parameters = '') {

    global $template_dir;



    // soft clean the alt tag

    $alt = zen_clean_html($alt);



    // use old method on template images

    if (strstr($src, 'includes/templates') or strstr($src, 'includes/languages') or PROPORTIONAL_IMAGES_STATUS == '0') {

      return zen_image_OLD($src, $alt, $width, $height, $parameters);

    }



//auto replace with defined missing image

    if ($src == DIR_WS_IMAGES and PRODUCTS_IMAGE_NO_IMAGE_STATUS == '1') {

      $src = DIR_WS_IMAGES . PRODUCTS_IMAGE_NO_IMAGE;

    }



    if ( (empty($src) || ($src == DIR_WS_IMAGES)) && (IMAGE_REQUIRED == 'false') ) {

      return false;

    }



    // if not in current template switch to template_default

    if (!file_exists($src)) {

      $src = str_replace(DIR_WS_TEMPLATES . $template_dir, DIR_WS_TEMPLATES . 'template_default', $src);

    }



    // hook for handle_image() function such as Image Handler etc

    if (function_exists('handle_image')) {

      $newimg = handle_image($src, $alt, $width, $height, $parameters);

      list($src, $alt, $width, $height, $parameters) = $newimg; 

    }



    // Convert width/height to int for proper validation.

    // intval() used to support compatibility with plugins like image-handler

    $width = empty($width) ? $width : intval($width);

    $height = empty($height) ? $height : intval($height);



// alt is added to the img tag even if it is null to prevent browsers from outputting

// the image filename as default

    $image = '<img src="' . zen_output_string($src) . '" alt="' . zen_output_string($alt) . '"';



    if (zen_not_null($alt)) {

      $image .= ' title=" ' . zen_output_string($alt) . ' "';

    }



    if ( ((CONFIG_CALCULATE_IMAGE_SIZE == 'true') && (empty($width) || empty($height))) ) {

      if ($image_size = @getimagesize($src)) {

        if (empty($width) && zen_not_null($height)) {

          $ratio = $height / $image_size[1];

          $width = $image_size[0] * $ratio;

        } elseif (zen_not_null($width) && empty($height)) {

          $ratio = $width / $image_size[0];

          $height = $image_size[1] * $ratio;

        } elseif (empty($width) && empty($height)) {

          $width = $image_size[0];

          $height = $image_size[1];

        }

      } elseif (IMAGE_REQUIRED == 'false') {

        return false;

      }

    }





    if (zen_not_null($width) && zen_not_null($height) and file_exists($src)) {

//      $image .= ' width="' . zen_output_string($width) . '" height="' . zen_output_string($height) . '"';

// proportional images

      $image_size = @getimagesize($src);

      // fix division by zero error

      $ratio = ($image_size[0] != 0 ? $width / $image_size[0] : 1);

      if ($image_size[1]*$ratio > $height) {

        $ratio = $height / $image_size[1];

        $width = $image_size[0] * $ratio;

      } else {

        $height = $image_size[1] * $ratio;

      }

// only use proportional image when image is larger than proportional size

      if ($image_size[0] < $width and $image_size[1] < $height) {

        $image .= ' width="' . $image_size[0] . '" height="' . intval($image_size[1]) . '"';

      } else {

        $image .= ' width="' . round($width) . '" height="' . round($height) . '"';

      }

    } else {

       // override on missing image to allow for proportional and required/not required

      if (IMAGE_REQUIRED == 'false') {

        return false;

      } else {

        $image .= ' width="' . intval(SMALL_IMAGE_WIDTH) . '" height="' . intval(SMALL_IMAGE_HEIGHT) . '"';

      }

    }



    // inject rollover class if one is defined. NOTE: This could end up with 2 "class" elements if $parameters contains "class" already.

    if (defined('IMAGE_ROLLOVER_CLASS') && IMAGE_ROLLOVER_CLASS != '') {

    	$parameters .= (zen_not_null($parameters) ? ' ' : '') . 'class="rollover"';

    }

    // add $parameters to the tag output

    if (zen_not_null($parameters)) $image .= ' ' . $parameters;



    $image .= ' />';



    return $image;

  }



/*

 * The HTML form submit button wrapper function

 * Outputs a "submit" button in the selected language

 */

  function zen_image_submit($image, $alt = '', $parameters = '', $sec_class = '') {

    global $template, $current_page_base, $zco_notifier;

    if (strtolower(IMAGE_USE_CSS_BUTTONS) == 'yes' && strlen($alt)<30) return zenCssButton($image, $alt, 'submit', $sec_class /*, $parameters = ''*/ );

    $zco_notifier->notify('PAGE_OUTPUT_IMAGE_SUBMIT');



    $image_submit = '<input type="image" src="' . zen_output_string($template->get_template_dir($image, DIR_WS_TEMPLATE, $current_page_base, 'buttons/' . $_SESSION['language'] . '/') . $image) . '" alt="' . zen_output_string($alt) . '"';



    if (zen_not_null($alt)) $image_submit .= ' title=" ' . zen_output_string($alt) . ' "';



    if (zen_not_null($parameters)) $image_submit .= ' ' . $parameters;



    $image_submit .= ' />';



    return $image_submit;

  }



/*

 * Output a function button in the selected language

 */

  function zen_image_button($image, $alt = '', $parameters = '', $sec_class = '') {

    global $template, $current_page_base, $zco_notifier;



    // inject rollover class if one is defined. NOTE: This could end up with 2 "class" elements if $parameters contains "class" already.

    if (defined('IMAGE_ROLLOVER_CLASS') && IMAGE_ROLLOVER_CLASS != '') {

    	$parameters .= (zen_not_null($parameters) ? ' ' : '') . 'class="rollover"';

    }



    $zco_notifier->notify('PAGE_OUTPUT_IMAGE_BUTTON');

    if (strtolower(IMAGE_USE_CSS_BUTTONS) == 'yes') return zenCssButton($image, $alt, 'button', $sec_class, $parameters = '');

    return zen_image($template->get_template_dir($image, DIR_WS_TEMPLATE, $current_page_base, 'buttons/' . $_SESSION['language'] . '/') . $image, $alt, '', '', $parameters);

  }





/**

 * generate CSS buttons in the current language

 * concept from contributions by Seb Rouleau and paulm, subsequently adapted to Zen Cart

 * note: any hard-coded buttons will not be able to use this function

**/

  function zenCssButton($image = '', $text, $type, $sec_class = '', $parameters = '') {



    // automatic width setting depending on the number of characters

    $min_width = 80; // this is the minimum button width, change the value as you like

    $character_width = 6.5; // change this value depending on font size!

    // end settings

    // added html_entity_decode function to prevent html special chars to be counted as multiple characters (like &amp;)

    $width = strlen(html_entity_decode($text)) * $character_width;

    $width = (int)$width;

    if ($width < $min_width) $width = $min_width;

    $style = ' style="width: ' . $width . 'px;"';

    // if no secondary class is set use the image name for the sec_class

    if (empty($sec_class)) $sec_class = basename($image, '.gif');

    if(!empty($sec_class))$sec_class = ' ' . $sec_class;

    if(!empty($parameters))$parameters = ' ' . $parameters;

    $mouse_out_class  = 'cssButton' . $sec_class;

    $mouse_over_class = 'cssButtonHover' . $sec_class . $sec_class . 'Hover';

    // javascript to set different classes on mouseover and mouseout: enables hover effect on the buttons

    // (pure css hovers on non link elements do work work in every browser)

    $css_button_js .=  'onmouseover="this.className=\''. $mouse_over_class . '\'" onmouseout="this.className=\'' . $mouse_out_class . '\'"';



    if ($type == 'submit'){

// form input button

   $css_button = '<input class="' . $mouse_out_class . '" ' . $css_button_js . ' type="submit" value="' .$text . '"' . $parameters . $style . ' />';

    }



    if ($type=='button'){

// link button

   $css_button = '<span class="' . $mouse_out_class . '" ' . $css_button_js . $style . ' >&nbsp;' . $text . '&nbsp;</span>'; // add $parameters ???

    }

    return $css_button;

  }





/*

 *  Output a separator either through whitespace, or with an image

 */

  function zen_draw_separator($image = 'true', $width = '100%', $height = '1') {



    // set default to use from template - zen_image will translate if not found in current template

    if ($image == 'true') {

      $image = DIR_WS_TEMPLATE_IMAGES . OTHER_IMAGE_BLACK_SEPARATOR;

    } else {

      if (!strstr($image, DIR_WS_TEMPLATE_IMAGES)) {

        $image = DIR_WS_TEMPLATE_IMAGES . $image;

      }

    }

    return zen_image($image, '', $width, $height);

  }



/*

 *  Output a form

 */

  function zen_draw_form($name, $action, $method = 'post', $parameters = '') {

    $form = '<form name="' . zen_output_string($name) . '" action="' . zen_output_string($action) . '" method="' . zen_output_string($method) . '"';



    if (zen_not_null($parameters)) $form .= ' ' . $parameters;



    $form .= '>';



    return $form;

  }



/*

 *  Output a form input field

 */

  function zen_draw_input_field($name, $value = '~*~*#', $parameters = '', $type = 'text', $reinsert_value = true) {

    $field = '<input type="' . zen_output_string($type) . '" name="' . zen_output_string($name) . '"';



    if ( $value == '~*~*#' && (isset($GLOBALS[$name]) && is_string($GLOBALS[$name])) && ($reinsert_value == true) ) {

      $field .= ' value="' . zen_output_string(stripslashes($GLOBALS[$name])) . '"';

    } elseif ($value != '~*~*#' && zen_not_null($value)) {

      $field .= ' value="' . zen_output_string($value) . '"';

    }



    if (zen_not_null($parameters)) $field .= ' ' . $parameters;



    $field .= ' />';



    return $field;

  }



/*

 *  Output a form password field

 */

  function zen_draw_password_field($name, $value = '', $parameters = 'maxlength="40"') {

    return zen_draw_input_field($name, $value, $parameters, 'password', true);

  }



/*

 *  Output a selection field - alias function for zen_draw_checkbox_field() and zen_draw_radio_field()

 */

  function zen_draw_selection_field($name, $type, $value = '', $checked = false, $parameters = '') {

    $selection = '<input type="' . zen_output_string($type) . '" name="' . zen_output_string($name) . '"';



    if (zen_not_null($value)) $selection .= ' value="' . zen_output_string($value) . '"';



    if ( ($checked == true) || ( isset($GLOBALS[$name]) && is_string($GLOBALS[$name]) && ( ($GLOBALS[$name] == 'on') || (isset($value) && (stripslashes($GLOBALS[$name]) == $value)) ) ) ) {

      $selection .= ' checked="checked"';

    }



    if (zen_not_null($parameters)) $selection .= ' ' . $parameters;



    $selection .= ' />';



    return $selection;

  }



/*

 *  Output a form checkbox field

 */

  function zen_draw_checkbox_field($name, $value = '', $checked = false, $parameters = '') {

    return zen_draw_selection_field($name, 'checkbox', $value, $checked, $parameters);

  }



/*

 * Output a form radio field

 */

  function zen_draw_radio_field($name, $value = '', $checked = false, $parameters = '') {

    return zen_draw_selection_field($name, 'radio', $value, $checked, $parameters);

  }



/*

 *  Output a form textarea field

 */

  function zen_draw_textarea_field($name, $width, $height, $text = '~*~*#', $parameters = '', $reinsert_value = true) {

    $field = '<textarea name="' . zen_output_string($name) . '" cols="' . zen_output_string($width) . '" rows="' . zen_output_string($height) . '"';



    if (zen_not_null($parameters)) $field .= ' ' . $parameters;



    $field .= '>';



    if ($text == '~*~*#' && (isset($GLOBALS[$name]) && is_string($GLOBALS[$name])) && ($reinsert_value == true) ) {

      $field .= stripslashes($GLOBALS[$name]);

    } elseif ($text != '~*~*#' && zen_not_null($text)) {

      $field .= $text;

    }



    $field .= '</textarea>';



    return $field;

  }



/*

 *  Output a form hidden field

 */

  function zen_draw_hidden_field($name, $value = '', $parameters = '') {

    $field = '<input type="hidden" name="' . zen_output_string($name) . '"';



    if (zen_not_null($value)) {

      $field .= ' value="' . zen_output_string($value) . '"';

    } elseif (isset($GLOBALS[$name]) && is_string($GLOBALS[$name])) {

      $field .= ' value="' . zen_output_string(stripslashes($GLOBALS[$name])) . '"';

    }



    if (zen_not_null($parameters)) $field .= ' ' . $parameters;



    $field .= ' />';



    return $field;

  }



/*

 * Output a form file-field

 */

  function zen_draw_file_field($name, $required = false) {

    $field = zen_draw_input_field($name, '', ' size="50" ', 'file');



    return $field;

  }





/*

 *  Hide form elements while including session id info

 *  IMPORTANT: This should be used in every FORM that has an OnSubmit() function tied to it, to prevent unexpected logouts

 */

  function zen_hide_session_id() {

    global $session_started;



    if ( ($session_started == true) && defined('SID') && zen_not_null(SID) ) {

      return zen_draw_hidden_field(zen_session_name(), zen_session_id());

    }

  }



/*

 *  Output a form pull down menu

 *  Pulls values from a passed array, with the indicated option pre-selected

 */

  function zen_draw_pull_down_menu($name, $values, $default = '', $parameters = '', $required = false) {

    $field = '<select name="' . zen_output_string($name) . '"';



    if (zen_not_null($parameters)) $field .= ' ' . $parameters;



    $field .= '>' . "\n";



    if (empty($default) && isset($GLOBALS[$name]) && is_string($GLOBALS[$name]) ) $default = stripslashes($GLOBALS[$name]);



    for ($i=0, $n=sizeof($values); $i<$n; $i++) {

      $field .= '  <option value="' . zen_output_string($values[$i]['id']) . '"';

      if ($default == $values[$i]['id']) {

        $field .= ' selected="selected"';

      }



      $field .= '>' . zen_output_string($values[$i]['text'], array('"' => '&quot;', '\'' => '&#039;', '<' => '&lt;', '>' => '&gt;')) . '</option>' . "\n";

    }

    $field .= '</select>' . "\n";



    if ($required == true) $field .= TEXT_FIELD_REQUIRED;



    return $field;

  }



/*

 * Creates a pull-down list of countries

 */

  function zen_get_country_list($name, $selected = '', $parameters = '') {

    $countries_array = array(array('id' => '', 'text' => PULL_DOWN_DEFAULT));

    $countries = zen_get_countries();



    for ($i=0, $n=sizeof($countries); $i<$n; $i++) {

      $countries_array[] = array('id' => $countries[$i]['countries_id'], 'text' => $countries[$i]['countries_name']);

    }



    return zen_draw_pull_down_menu($name, $countries_array, $selected, $parameters);

  }



/*

 * Assesses suitability for additional parameters such as rel=nofollow etc

 */

  function zen_href_params($page = '', $parameters = '') {

    global $current_page_base;

    $addparms = '';

    // if nofollow has already been set, ignore this function

    if (stristr($parameters, 'nofollow')) return $parameters;

    // if list of skippable pages has been set in meta_tags.php lang file (is by default), use that to add rel=nofollow params

    if (defined('ROBOTS_PAGES_TO_SKIP') && in_array($page, explode(",", constant('ROBOTS_PAGES_TO_SKIP'))) 

        || $current_page_base=='down_for_maintenance') $addparms = 'rel="nofollow"';

    return ($parameters == '' ? $addparms : $parameters . ' ' . $addparms);

  }

?>